If anyone is an expert on "sucking up all the oxygen" it's Joe Biden.
Biden is bitter - he must have noticed how Trump treats his VP Pence, with inclusiveness, friendship and RESPECT.
Obama selected Biden as his VP because Joe is such an ***kisser with no intellect, experience or charisma....much like the groveling village idiot he has proven to be.
His son Beau’s death was the only time he appeared to be a normal human being; it didn’t last long.